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foss-eda-tools / third_party / opencircuitdesign.com / open_pdks / 743227bb888b0349744ec0ab0fb75fd33f792b8f
commit743227bb888b0349744ec0ab0fb75fd33f792b8f[log] [tgz]
authorTim Edwards <tim@opencircuitdesign.com>Thu Dec 15 21:41:01 2022 -0500
committerTim Edwards <tim@opencircuitdesign.com>Thu Dec 15 21:41:01 2022 -0500
tree7a5881e035573581859b30479a428958c8c2ddf2
parent229580810660a5c14eebc70cf6694187801ea20e [diff]
Removed the mux GDS for sky130_fd_sc_hd added in a recent commit
because (1) there are actually many such cells with unlabeled
pins, and (2) magic was updated to handle the unlabeled pins by
simply removing them when found.  Also:  Updated the netgen
setup file for GF180MCU to include the new method for associating
properties with specific pins.  This allows netgen to correctly
handle the *_dss salicide block devices when the FET drain and
source have been permuted, while allowing the s_sab and d_sab
properties to be compared so that long and short side terminals
are rigorously checked by LVS.  Updated the JSON file for GF180MCU.
4 files changed
tree: 7a5881e035573581859b30479a428958c8c2ddf2
  1. .github/
  2. common/
  3. gf180mcu/
  4. runtime/
  5. scripts/
  6. sky130/
  7. .gitignore
  8. configure
  9. docs.txt
  10. LICENSE
  11. Makefile.in
  12. README.md
  13. VERSION
README.md

Open-PDKs (open_pdks)

Summary:

Automatic setup of PDKs for open-source tools from foundry sources.

Builds out and populates a new set of directories and subdirectories in the efabless format, with the efabless name for the PDK at the top, followed by categories “libs.ref” (IP) and “libs.tech” (EDA tool setup), each with subcategories corresponding to layout, abstract views, netlists, etc. for the IP; and magic, netgen, qflow, etc., for the EDA tool setup.

The populated PDK directories can contain either copies of files from the foundry sources, links to the foundry sources, or links back to another PDK.

Generates magic layout views for all vendor IP for which either a GDS view or a LEF view exists. Annotates the views as needed to handle ports, bounding boxes, etc.

This distribution contains sources for building out the SkyWater SKY130 130nm process. Sources for the foundry process data must be obtained separately. Read the README file in subdirectory sky130/ for instructions on obtaining and building the SkyWater sky130A PDK.

License:

Open_PDKs is open-source software distributed under the Apache-2.0 license. See file LICENSE for the complete license text.

Instructions:

git clone https://github.com/RTimothyEdwards/open_pdks.git
cd open_pdks
./configure [options]
make
[sudo] make install

where the configure [options] are specific to each foundry PDK supported by open_pdks and can be queried using

./configure --help

At a minimum you will want to pass a configure option to declare the location of the PDK vendor source distribution (which can be obtained separately),

./configure --enable-[PDK_name]-pdk=[path]

The open_pdks version of the PDK can be built locally within open_pdks without the need to declare an install target or run “make install”. However, it is recommended to declare a target location and install there, using

./configure --prefix=[path] --enable-[PDK_name]-pdk=[path]

followed by “make” and “make install”.

Also see the website at http://opencircuitdesign.com/open_pdks/. The “Install” page has full instructions for configuring and installing open_pdks.